body{
    display: flex;
    justify-content: center;
}
body>div{
    width: 1900px;
}
*{
    margin:0 ;
}


/*--------------------------------导航栏-----------------------------------------*/

/*.nv{*/
/*    display: flex;*/
/*    justify-content: space-between;*/
/*    margin-right: 200px;*/
/*    border-bottom: 1px dashed gray;*/
/*    margin-bottom: 10px;*/
/*    margin-left: 400px;*/
/*    margin-right: 400px;*/
/*}*/
/*.nv>div{*/
/*    display: flex;*/
/*    justify-content: space-between;*/
/*    margin-left: 20px;*/
/*    !*border: 1px solid red;*!*/

/*}*/
/*.nv>div>div{*/
/*    display: flex;*/
/*    justify-content: space-between;*/
/*    margin-left: 20px;*/
/*    !*border: 1px solid red;*!*/
/*}*/
/*!*-----------------------------------标题--------------------------------------*!*/
.title>div:nth-child(1)>div{
    /*border: 1px solid red;*/
    text-align: center;
    margin-top: 50px;
}
.title>div:nth-child(1)>div:nth-child(1){
    /*border: 1px solid red;*/
    text-align: center;
    color: orange;
    font-size: 30px;
}
.title>div:nth-child(1)>div:nth-child(2){
    /*border: 1px solid red;*/
    font-size: 20px;
}
/*-------------------------------------------------------------------------*/
.content{
    /*border: 1px solid red;*/
    margin-left: 400px;
    margin-right: 400px;
}
.content>div{
    display: flex;
    justify-content: space-between;
    border-bottom:1px dashed gray ;
    line-height: 30px;
    margin-top: 20px;


}
.content>div>div:nth-child(1){
    display: flex;
}
.content>div>div:nth-child(1)>div:nth-child(2){
    width: 700px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}